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Related to Anthocerotopsida: Anthocerotae, Anthocerophyta, Anthocerotophyta, Hornworts


 (hôrn′wûrt′, -wôrt′)
1. Any of several small green nonvascular plants of the division Anthocerotophyta, having a flat thallus from which elongated, hornlike spore-producing structures grow.
2. Any of several aquatic vascular plants of the genus Ceratophyllum, forming branched masses in quiet water and having minute unisexual flowers and stiff, forked, whorled leaves resembling antlers or horns.


1. (Plants) any aquatic plant of the genus Ceratophyllum, forming submerged branching masses in ponds and slow-flowing streams: family Ceratophyllaceae
2. (Botany) any of a group of bryophytes belonging to the phylum Anthocerophyta, resembling liverworts but with hornlike sporophytes


(ˈhɔrnˌwɜrt, -ˌwɔrt)

any of several rootless aquatic herbs of the genus Ceratophyllum, having finely dissected, whorled leaves.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hornwort - any aquatic plant of the genus Ceratophyllumhornwort - any aquatic plant of the genus Ceratophyllum; forms submerged masses in ponds and slow-flowing streams
Ceratophyllum, genus Ceratophyllum - constituting the family Ceratophyllaceae: hornworts
aquatic plant, hydrophyte, hydrophytic plant, water plant - a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth
2.hornwort - liverworts with slender hornlike capsules
Anthocerotales, order Anthocerotales - hornworts; liverworts having a thalloid gametophyte; in some classification systems included in the class Hepaticopsida
hepatic, liverwort - any of numerous small green nonvascular plants of the class Hepaticopsida growing in wet places and resembling green seaweeds or leafy mosses
References in periodicals archive ?
Hepaticas y antocerotas (Marchantiopsida y Anthocerotopsida) de Salamanca (Espana) Botanica Complutensis 25: 207-212.
Class 2 Anthocerotopsida (Anthocerophyta, Hornworts, Horned Liverworts)